Virtually everyone fails to grasp exactly how large of a number a billion is. It’s so, so much bigger than the ”very big number” people think of when they hear the word.

I don’t think that’s a fair assessment. Comparing to a traditional loop, it has marginally better thermals, one less set of tubing (i.e. places for leaks to spring up), and a smaller form factor. Wether or not those are “worth the money” is completely subjective. As someone interested in custom SSF builds I thought it was interesting.